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Patents > National tech categories : USPC 244/30 or None & Family year: 1917

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Tech fields:
None (362) · airplane (39) · construction (30) · frame (26) · design (17) · control (15) · fuselage (15) · propellers (14) · wings (13) · stability (12) · propulsion (10) · LTA (10) · metal (9) · aerial propeller (9) · landing (8) · rudder (7) · propeller (7) · military (7) · spars (7) · structure (7)
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Related to aircraft:
Patent agent:
None (357) · Brewer & Son (12) · None (12) · Boult, Wade & Tennant (9) · Marks & Clerk (8) · John P. Tarbox (7) · Haseltine, Lake & Co. (7) · Randolph, Jr. (5) · Herbert Haddan & Co. (4) · Victor J. Evans (4) · Munn & Co. (3) · Joseph F. O'Brien (3) · J. D. Roots & Co. (3) · Herbert H. Thompson (3)
National tech categories: (Click arrow to add another value)
IPCs:
None (401) · IPC B64C3/00 (13) · IPC B64C3/18 (12) · IPC B64C1/06 (10) · IPC B64C39/00 (9) · IPC B64C13/00 (6) · IPC B64C35/00 (5) · IPC B64C11/04 (5) · IPC B64C1/00 (4) · IPC B64C11/20 (3) · IPC B64C11/36 (3) · IPC B64C27/04 (3) · IPC B64C11/22 (3) · IPC B64C11/00 (3) · IPC B64C3/38 (3) · IPC B64C13/12 (3)
CPCs:
CPC B64C3/00 (46) · CPC B64C2700/6295 (36) · CPC B64C13/00 (27) · CPC B64C2700/6235 (23) · CPC B64C23/005 (22) · CPC B64C3/185 (19) · CPC B64B1/00 (19) · CPC B64C35/00 (18) · CPC B64C17/00 (17) · CPC B64C2001/0063 (17) · CPC B64C2700/6233 (17) · CPC B64C39/00 (16) · CPC B64C2001/0081 (15) · CPC B64C2700/6256 (15) · CPC B64C3/18 (12) · CPC B64C1/065 (12) · CPC B64C11/04 (11) · CPC B64C25/60 (9) · CPC B64C11/36 (9) · CPC B64B1/40 (9)
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